Water Temperature Model Boundary Conditions Water Temperature Model - PDF document

12/3/2012 Water Temperature Model Boundary Conditions Water Temperature Model Boundary Conditions A=Alameda Creek at Diversion Dam B=Base of Calaveras Dam C=Arroyo de la Laguna D=Sinbad Creek E=Vallecitos Creek F=Stonybrook Creek G=Dry Creek H=Welch Creek I=San Antonio Creek 1

12/3/2012 Water Temperature Model Boundary Conditions • Used measured water temperature data whenever possible (and as applicable for a given scenario) • Where no data existed, used linear regression between 3 ‐ day running average air temperature of appropriate meteorological station and measured water temperature for period of record • For impaired and future conditions, used Calaveras Reservoir Release Temperature spreadsheet model (from SFPUC limnology data) Above ACDD comparison 2

12/3/2012 Unique for each scenario Boundary Condition Modeled Location Measured Temperatures Temperatures Met Data Alameda Creek Diversion Partial: Summer 2003-2007 1996-2002, fill gaps Calaveras Dam Continuous: November 2007- from 2003-2007 (T-13) Road present (T-13) Base of Calaveras Dam Use Arroyo Hondo (T-17) 1996-2002, fill gaps Rose Peak Partial: Summer 2003-2006 from 2003-2006 (T-17) Continuous: April 2007-present Arroyo de la Laguna at Continuous: USGS gaging 1996-2003 Livermore Verona gage station Nov 2003-present Sinbad Creek None 1996-present using Livermore Stonybrook regression Vallecitos Creek (SBA) August 1996-present N/A N/A Vallecitos Creek (Natural May-Sept 2003 1996-2003, 2003- Livermore runoff) present Stonybrook Creek Partial: 1999, 2000, 2003, 2004 1996-1999, 2001, Fremont 2002, 2005-present, fill gaps Dry Creek None 1996-present using Fremont Stonybrook regression Welch Creek Summer 2003 1996-present using Livermore ACDD regression San Antonio Creek None 1996-present using Livermore ACDD regression Provided to Evan for inclusion in HEC ‐ RAS model 3

12/3/2012 Alameda Creek above Arroyo de la Laguna (Water Temple) Alameda Creek above Arroyo de la Laguna (Water Temple) 4

12/3/2012 Alameda Creek above San Antonio Creek (Quarry site) 5